What Is Traumatic Brain Injury?

In order to understand the persistent symptoms that can accompany a concussion or mild TBI, it is important to first understand the general characteristics of the broader condition of traumatic brain injury or TBI.

A traumatic brain injury (TBI) is a blow or jolt to the head that disrupts the normal function of the brain. The severity of the TBI is determined at the time of the injury and may be classified as: mild, moderate or severe.

A concussion, or mild traumatic brain injury is the most common type of TBI. ^CDC

To learn more about concussion in a military context, please view our web course: Identifying and Treating Military Traumatic Brain Injury.